Tested 2024-10-24 21:19:53 using Chrome 130.0.6723.58 (runtime settings).
| Metric | Value |
|---|---|
| Page metrics | |
| Performance Score | 60 |
| Total Page Transfer Size | 3.2 MB |
| Requests | 130 |
| Timing metrics | |
| TTFB [median] | 417 ms |
| First Paint [median] | 939 ms |
| Fully Loaded [median] | 10.501 s |
| Google Web Vitals | |
| TTFB [median] | 417 ms |
| First Contentful Paint (FCP) [median] | 939 ms |
| Largest Contentful Paint (LCP) [median] | 2.843 s |
| Cumulative Layout Shift (CLS) [median] | 0.65 |
| Total Blocking Time [median] | 456 ms |
| Max Potential FID [median] | 260 ms |
| CPU metrics | |
| CPU long tasks [median] | 3 |
| CPU longest task duration | 273 ms |
| CPU last long task happens at | 4.214 s |
| Visual Metrics | |
| First Visual Change [median] | 2.866 s |
| Speed Index [median] | 3.602 s |
| Visual Complete 85% [median] | 4.233 s |
| Visual Complete 99% [median] | 4.533 s |
| Last Visual Change [median] | 4.533 s |
| Metric | min | median | mean | max |
|---|---|---|---|---|
| Visual Metrics | ||||
| FirstVisualChange | 2.833 s | 2.866 s | 3.093 s | 4.066 s |
| LastVisualChange | 4.500 s | 4.533 s | 4.773 s | 5.733 s |
| SpeedIndex | 3.552 s | 3.602 s | 3.823 s | 4.771 s |
| VisualReadiness | 1.667 s | 1.667 s | 1.680 s | 1.700 s |
| VisualComplete85 | 4.166 s | 4.233 s | 4.446 s | 5.400 s |
| VisualComplete95 | 4.500 s | 4.533 s | 4.773 s | 5.733 s |
| VisualComplete99 | 4.500 s | 4.533 s | 4.773 s | 5.733 s |
| Google Web Vitals | ||||
| Time To First Byte (TTFB) | 405 ms | 417 ms | 624 ms | 1.441 s |
| Largest Contentful Paint (LCP) | 2.813 s | 2.843 s | 3.074 s | 4.039 s |
| First Contentful Paint (FCP) | 927 ms | 939 ms | 1.146 s | 1.962 s |
| Cumulative Layout Shift (CLS) | 0.646 | 0.6473 | 0.6472 | 0.6482 |
| More metrics | ||||
| firstPaint | 927 ms | 939 ms | 1.146 s | 1.962 s |
| loadEventEnd | 3.520 s | 3.577 s | 3.798 s | 4.751 s |
| User Timing | ||||
| sentry-tracing-init | 1.358 s | 1.371 s | 1.601 s | 2.514 s |
| CPU | ||||
| Total Blocking Time | 448 ms | 456 ms | 459 ms | 483 ms |
| Max Potential FID | 258 ms | 260 ms | 264 ms | 273 ms |
| CPU long tasks | 3 | 3 | 3 | 3 |
| CPU last long task happens at | 4.165 s | 4.214 s | 4.437 s | 5.394 s |
Run 3 SpeedIndex median
Use--filmstrip.showAll to show all filmstrips.
The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 8.0.2.
| Title | Advice | Score |
|---|---|---|
| Cumulative Layout Shift (cumulativeLayoutShift) | You have a poor cumulative layout shift score (0.6482). It is in the Google Web Vitals poor range, with a shift higher than 0.25. You should manually check the filmstrip or video and check if it will affect the user. | 0 |
| Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals. | ||
| Have a good URL format (url) | The page is using more than two request parameters. You should really rethink and try to minimize the number of parameters. The URL is 106 characters long. Try to make it less than 100 characters. Could the developer or the CMS be on Windows? Avoid using spaces in the URLs, use hyphens or underscores. | 30 |
| Description: A clean URL is good for the user and for SEO. Make them human readable, avoid too long URLs, spaces in the URL, too many request parameters, and never ever have the session id in your URL. | ||
| Do not send too long headers (longHeaders) | https://js.sentry-cd...a9b8cd1ac7.min.js has a header content-security-policy that is 1060 characters long. https://ui.adsabs.ha...ccounts/bootstrap has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...ccounts/bootstrap has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...site_wide_message has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...u/v1/search/query has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...u/v1/search/query has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...u/v1/search/query has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...u/v1/search/query has a header access-control-allow-origin that is 1057 characters long. https://ui.adsabs.ha...u/v1/search/query has a header access-control-allow-origin that is 1057 characters long. | 91 |
| Description: Do not send response headers that are too long. | ||
| Offenders: | ||
| Avoid too many third party requests (thirdParty) | The page do 38% requests to third party domains (50 requests and 1.3 MB). First party is 80 requests and 2.1 MB. The regex .*harvard.* was used to calculate first/third party requests. | 50 |
| Description: Do not load most of your content from third party URLs. | ||
| Avoid unnecessary headers (unnecessaryHeaders) | There are 89 responses that sets both a max-age and expires header. There are 8 responses that sets a pragma no-cache header (that is a request header). There are 23 responses that sets a server header. | 0 |
| Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want. | ||
| Offenders: | ||
| Title | Advice | Score |
|---|---|---|
| Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader) | Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download. | 0 |
| Description: Content Security Policy is delivered via a HTTP response header, and defines approved sources of content that the browser may load. It can be an effective countermeasure to Cross Site Scripting (XSS) attacks and is also widely supported and usually easily deployed. https://scotthelme.co.uk/content-security-policy-an-introduction/. | ||
| Offenders: | ||
| Avoid using Google reCAPTCHA (googleReCaptcha) | You share your user data with Google since you use Google reCAPTCHA. | 0 |
| Description: You should avoid using Google reCAPTCHA since it will share your users information with Google. | ||
| Offenders: | ||
| Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader) | Set a referrer-policy header to make sure you do not leak user information. | 0 |
| Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/. | ||
| Offenders: | ||
| Do not share user data with third parties. (thirdPartyPrivacy) | The page has 38% requests that are 3rd party (50 requests with a size of 1.3 MB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 7 utility requests and uses 2 utility tools. The page do 17 survelliance requests and uses 5 survelliance tools. The page do 2 tag-manager requests and uses 1 tag-manager tool. The page do 6 analytics requests and uses 1 analytics tool. | 0 |
| Description: Using third party requests shares user information with that third party. Please avoid that! The project https://github.com/patrickhulce/third-party-web is used to categorize first/third party requests. | ||
| Offenders: | ||
| Page info | |
|---|---|
| Title | abs:"dark energy" - Astrophysics Data System |
| Width | 1350 |
| Height | 3109 |
| DOM elements | 2509 |
| Avg DOM depth | 22 |
| Max DOM depth | 32 |
| Iframes | 2 |
| Script tags | 94 |
| Local storage | 662 B |
| Session storage | 146 B |
| Network Information API | 4g |
Data collected using Wappalyzerversion 6.10.66.
 Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyser find more information about technologies used.
| Technology | Confidence | Category |
|---|---|---|
| Envoy | 100 | Â Reverse proxies |
| Google Cloud | 100 | Â IaaS |
| Fly.io | 100 | Â PaaS |
| reCAPTCHA | 100 | Â Security |
| HSTS | 100 | Â Security |
| Google Cloud CDN | 100 | Â CDN |
| Cloudflare | 100 | Â CDN |
| HTTP/3 | 100 | Â Miscellaneous |
Data collected using Third Party Web 0.24.0
| Utility |
|---|
| Other Google APIs/SDKs |
| Sentry |
| Survelliance |
| Other Google APIs/SDKs |
| Google CDN |
| Google Tag Manager |
| Google Analytics |
| Google Fonts |
| Cdn |
| Google CDN |
| JSDelivr CDN |
| Unpkg |
| jQuery CDN |
| Google Fonts |
| Tag-manager |
| Google Tag Manager |
| Analytics |
| Google Analytics |
Data from run 3
| Visual Metrics | |
|---|---|
| First Visual Change | 2.866 s |
| Speed Index | 3.602 s |
| Visual Complete 85% | 4.233 s |
| Visual Complete 95% | 4.566 s |
| Visual Complete 99% | 4.566 s |
| Last Visual Change | 4.566 s |
| Visual Readiness | 1.700 s |
| Navigation Timing | |
|---|---|
| backEndTime | 439 ms |
| domContentLoadedTime | 961 ms |
| domInteractiveTime | 961 ms |
| domainLookupTime | 0 ms |
| frontEndTime | 3.137 s |
| pageDownloadTime | 1 ms |
| pageLoadTime | 3.576 s |
| redirectionTime | 0 ms |
| serverConnectionTime | 337 ms |
| serverResponseTime | 101 ms |
| Google Web Vitals | |
|---|---|
| Time to first byte (TTFB) | 439 ms |
| First Contentful Paint (FCP) | 962 ms |
| Largest Contentful Paint (LCP) | 2.843 s |
| Cumulative Layout Shift (CLS) | 0.65 |
| Total Blocking Time (TBT) | 448 ms |
| First Contentful Paint info | |
|---|---|
| Elements that needed recalculate style before FCP | 16 |
| Time spent in recalculate style before FCP | 2.867 ms |
| Extra timings | |
|---|---|
| TTFB | 439 ms |
| First Paint | 962 ms |
| Load Event End | 3.577 s |
| Fully loaded | 10.501 s |
| User Timing marks | |
|---|---|
| sentry-tracing-init | 1.394 s |
When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.
| Element type | P |
| Element/tag | <p></p> |
| Render time | 2.843 s |
| Elements that needed recalculate style before LCP | 192 |
| Time spent in recalculate style before LCP | 14.479 ms |
| Load time | 0 ms |
| Size (width*height) | 24565 |
| DOM path | |
| div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(0) > div:eq(0) > p:eq(1)> div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(0) > div:eq(0) > p:eq(1)> | |
0.64734 cumulative layout shift collected from the Cumulative Layout Shift API.
These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.
| Score | HTML Element |
|---|---|
| 0.46226 | <div id="footer-container"></div>,<div id="darkSwitch" class="darkmode-toggle" title="Turn on dark mode"></div> |
| body > div#app-container > div#body-template-container > div > div#footer-container,body > div#darkSwitch | |
| 0.08359 | <div id="content-container"></div> |
| body > div#app-container > div#body-template-container > div > div#content-container | |
| 0.07853 | <div id="footer-container"></div> |
| body > div#app-container > div#body-template-container > div > div#footer-container | |
| 0.00854 | <div class="facet__pagination-container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div> |
| body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(0) > div > div > div > div:eq(1) > div:eq(1),body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(1) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(2) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(3) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(4) > div > div | |
| 0.00792 | <div class="__footer_brand"></div>,<div class="__footer_list"></div>,<div class="__footer_list"></div>, |
| body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(0),body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(1),body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(3),body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(2) > ul > li:eq(1) > a > #text:eq(1) | |
| 0.00254 | <div class="logo2"></div>,<div class="__footer_brand_disclaimer"></div> |
| body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(0) > div:eq(1) > div:eq(1),body > div#app-container > div#body-template-container > div > div#footer-container > div > div > footer > div > div:eq(0) > div:eq(2) | |
| 0.00206 | <div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div> |
| body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(5) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(1) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(2) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(3) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(4) > div > div | |
| 0.00151 | |
| 0.00040 | <div class="facet__pagination-container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div>,<div class="facet__container"></div> |
| body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(2) > div > div > div > div:eq(1) > div:eq(1),body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(3) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(4) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(5) > div > div,body > div#app-container > div#body-template-container > div > div#content-container > div > div > div#results-page-layout > div:eq(3) > div#dynamic-page-body > div > div > div#results-left-column > div > div:eq(6) > div > div | |

The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.
Read more about the Long Animation Frames API here here.
The top 10 longest animation frames entries
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 215 ms | 264.8 ms | 5.2 ms | 2.5 ms | 2.7 ms |
| https://browser.sentry-cdn.com/7.119.2/bundle.tracing.replay.min.js | ||||
Forced Style And Layout Duration: 66 ms Invoker: Â TimerHandler:setTimeout | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 204 ms | 260.6 ms | 7.4 ms | 3.3 ms | 4.1 ms |
| https://browser.sentry-cdn.com/7.119.2/bundle.tracing.replay.min.js | ||||
Forced Style And Layout Duration: 108 ms Invoker: Â XMLHttpRequest.onload | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 46 ms | 106.1 ms | 2.9 ms | 2 ms | 0.9 ms |
| https://browser.sentry-cdn.com/7.119.2/bundle.tracing.replay.min.js | ||||
Forced Style And Layout Duration: 43 ms Invoker: Â SCRIPT[src=./js/react/MyAdsFreeform/constants.js?v=v1.5.7-hotfix4].onload | ||||
| Blocking duration | Work duration | Render duration | PreLayout Duration | Style And Layout Duration |
|---|---|---|---|---|
| 0 ms | 513.9 ms | 6.1 ms | 0.1 ms | 6 ms |
| No availible script information. | ||||
There are no Server Timings.
There are no custom configured scripts.
There are no custom extra metrics from scripting.
How the page is built.
| Summary | |
|---|---|
| HTTP version | HTTP/2.0 |
| Total requests | 130 |
| Total domains | 12 |
| Total transfer size | 3.2 MB |
| Total content size | 5.4 MB |
| Responses missing compression | 73 |
| Number of cookies | 8 |
| Third party cookies | 0 |
| Requests per response code | |
|---|---|
| 200 | 123 |
| 204 | 6 |
| 302 | 1 |
| URL | Type | Transfer Size | Content Size |
|---|---|---|---|
| https://ui.adsabs.ha...ch-page.bundle.js | javascript | 641.9 KB | 641.5 KB |
| https://ui.adsabs.ha...ig/main.bundle.js | javascript | 445.5 KB | 445.2 KB |
| https://ui.adsabs.ha...es/css/styles.css | css | 340.7 KB | 340.5 KB |
| https://www.gstatic..../recaptcha__en.js | javascript | 216.2 KB | 544.2 KB |
| https://www.gstatic..../recaptcha__en.js | javascript | 215.8 KB | 544.2 KB |
| https://www.googleta...nager.com/gtag/js | javascript | 99.8 KB | 292.5 KB |
| https://ui.adsabs.ha...u/v1/search/query | json | 95.1 KB | 94.7 KB |
| https://www.googleta...anager.com/gtm.js | javascript | 81.4 KB | 244.1 KB |
| https://ui.adsabs.ha...ome-webfont.woff2 | font | 75.5 KB | 75.4 KB |
| https://browser.sent...ing.replay.min.js | javascript | 71.4 KB | 223.3 KB |
| https://ui.adsabs.ha...u/libs/require.js | javascript | 69.6 KB | 69.3 KB |
| https://code.jquery..../jquery-ui.min.js | javascript | 66.5 KB | 247.7 KB |
| https://cdn.jsdelivr...g/TeX-AMS_HTML.js | javascript | 65.0 KB | 216.4 KB |
| https://ui.adsabs.ha...tyles/img/cfa.png | image | 55.9 KB | 55.8 KB |
| https://cdn.jsdelivr...@3.5.17/d3.min.js | javascript | 54.3 KB | 148.2 KB |
| https://ui.adsabs.ha...u/v1/search/query | json | 44.8 KB | 44.5 KB |
| https://cdn.jsdelivr...-bootstrap.min.js | javascript | 42.8 KB | 162.1 KB |
| https://www.gstatic....R/styles__ltr.css | css | 41.7 KB | 77.4 KB |
| https://cdn.jsdelivr...production.min.js | javascript | 40.7 KB | 117.8 KB |
| https://www.google.c...ptcha/api2/anchor | html | 31.4 KB | 49.8 KB |
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 44.4 KB | 62.4 KB | 5 |
| css | 0 b | 382.4 KB | 417.9 KB | 2 |
| javascript | 0 b | 2.5 MB | 4.6 MB | 92 |
| image | 0 b | 81.6 KB | 81.0 KB | 7 |
| font | 0 b | 106.3 KB | 105.5 KB | 3 |
| plain | 0 b | 781 B | 0 b | 6 |
| json | 0 b | 149.2 KB | 143.6 KB | 10 |
| svg | 0 b | 24.6 KB | 24.2 KB | 4 |
| Total | 0 b | 3.2 MB | 5.4 MB | 129 |
| Domain | Total download time | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| ui.adsabs.harvard.edu | 10.464 s | 2.0 MB | 2.0 MB | 80 |
| www.google.com | 911 ms | 40.7 KB | 69.7 KB | 3 |
| js.sentry-cdn.com | 594 ms | 2.5 KB | 2.8 KB | 1 |
| www.gstatic.com | 1.995 s | 476.0 KB | 1.1 MB | 4 |
| www.googletagmanager.com | 709 ms | 181.2 KB | 536.6 KB | 2 |
| browser.sentry-cdn.com | 504 ms | 71.4 KB | 223.3 KB | 1 |
| cdn.jsdelivr.net | 5.067 s | 410.4 KB | 1.2 MB | 26 |
| unpkg.com | 566 ms | 3.5 KB | 7.1 KB | 2 |
| www.google-analytics.com | 1.107 s | 781 B | 0 b | 6 |
| code.jquery.com | 634 ms | 66.5 KB | 247.7 KB | 1 |
| fonts.gstatic.com | 810 ms | 30.8 KB | 30.2 KB | 2 |
| o1060269.ingest.us.sentry.io | 617 ms | 433 B | 82 B | 2 |
| type | min | median | max |
|---|---|---|---|
| Expires | 0 seconds | 1 day | 1 year |
| Last modified | 1 week | 13 weeks | 33 years |
Included requests done after load event end.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 0 b | 0 |
| css | 0 b | 0 |
| javascript | 0 b | 0 |
| image | 1.6 KB | 1 |
| font | 0 b | 0 |
| json | 145.4 KB | 7 |
| plain | 187 B | 3 |
| Total | 147.2 KB | 11 |
Includes requests done after DOM content loaded.
| Content | Transfer Size | Requests |
|---|---|---|
| html | 36.2 KB | 4 |
| css | 41.7 KB | 1 |
| javascript | 2.0 MB | 85 |
| image | 81.6 KB | 7 |
| font | 106.3 KB | 3 |
| plain | 781 B | 6 |
| json | 149.2 KB | 10 |
| svg | 24.6 KB | 4 |
| Total | 2.5 MB | 121 |
Render blocking information directly from Chrome.
| Blocking | In body parser blocking | Potentially blocking |
|---|---|---|
| 4 | 1 | 0 |
| URL | Type |
|---|---|
| https://ui.adsabs.ha...ch-page.bundle.js | non_blocking |
| https://ui.adsabs.ha...ig/main.bundle.js | non_blocking |
| https://ui.adsabs.ha...es/css/styles.css | non_blocking |
| https://www.gstatic..../recaptcha__en.js | blocking |
| https://www.gstatic..../recaptcha__en.js | blocking |
| https://www.googleta...nager.com/gtag/js | non_blocking |
| https://www.googleta...anager.com/gtm.js | non_blocking |
| https://ui.adsabs.ha...ome-webfont.woff2 | non_blocking |
| https://browser.sent...ing.replay.min.js | non_blocking |
| https://ui.adsabs.ha...u/libs/require.js | non_blocking |
| https://code.jquery..../jquery-ui.min.js | non_blocking |
| https://cdn.jsdelivr...g/TeX-AMS_HTML.js | non_blocking |
| https://cdn.jsdelivr...@3.5.17/d3.min.js | non_blocking |
| https://cdn.jsdelivr...-bootstrap.min.js | non_blocking |
| https://www.gstatic....R/styles__ltr.css | blocking |
| https://cdn.jsdelivr...production.min.js | non_blocking |
| https://cdn.jsdelivr...ist/jquery.min.js | non_blocking |
| https://cdn.jsdelivr...2/jsonpath.min.js | non_blocking |
| https://ui.adsabs.ha.../libs/polyfill.js | non_blocking |
| https://cdn.jsdelivr...@2.7.4/MathJax.js | non_blocking |
| https://cdn.jsdelivr...js/select2.min.js | non_blocking |
| https://cdn.jsdelivr...min/moment.min.js | non_blocking |
| https://ui.adsabs.ha...ig/main.config.js | non_blocking |
| https://ui.adsabs.ha...ch-page.config.js | non_blocking |
| https://fonts.gstati...92Fr1Mu4mxK.woff2 | non_blocking |
| https://fonts.gstati...1MmEU9fBBc4.woff2 | non_blocking |
| https://cdn.jsdelivr...ash.compat.min.js | non_blocking |
| https://ui.adsabs.ha.../paper_network.js | non_blocking |
| https://cdn.jsdelivr...marionette.min.js | non_blocking |
| https://cdn.jsdelivr.../bootstrap.min.js | non_blocking |
| https://www.google.c...EAx1CVcnywh2Sk.js | non_blocking |
| https://ui.adsabs.ha...ainers/App.jsx.js | non_blocking |
| https://ui.adsabs.ha...ainers/App.jsx.js | non_blocking |
| https://cdn.jsdelivr...0.13.9/runtime.js | non_blocking |
| https://ui.adsabs.ha.../actions/index.js | non_blocking |
| https://cdn.jsdelivr...2/backbone-min.js | non_blocking |
| https://ui.adsabs.ha...reducers/index.js | non_blocking |
| https://ui.adsabs.ha.../actions/index.js | non_blocking |
| https://cdn.jsdelivr...ser@2.11.0/es5.js | non_blocking |
| https://cdn.jsdelivr...eact-redux.min.js | non_blocking |
| https://ui.adsabs.ha...onents/App.jsx.js | non_blocking |
| https://ui.adsabs.ha...eQueryForm.jsx.js | non_blocking |
| https://cdn.jsdelivr...production.min.js | non_blocking |
| https://ui.adsabs.ha...lector-app.jsx.js | non_blocking |
| https://cdn.jsdelivr...3.layout.cloud.js | non_blocking |
| https://ui.adsabs.ha...ort/widget.jsx.js | non_blocking |
| https://ui.adsabs.ha...orm/middleware.js | non_blocking |
| https://ui.adsabs.ha...ents/Setup.jsx.js | non_blocking |
| https://ui.adsabs.ha...lapsePanel.jsx.js | non_blocking |
| https://ui.adsabs.ha...eeform/reducer.js | non_blocking |
| https://cdn.jsdelivr.../clipboard.min.js | non_blocking |
| https://ui.adsabs.ha...u/libs/sprintf.js | non_blocking |
| https://ui.adsabs.ha...shared/helpers.js | non_blocking |
| https://cdn.jsdelivr....1/persist-min.js | non_blocking |
| https://ui.adsabs.ha...reducers/index.js | non_blocking |
| https://cdn.jsdelivr...dation-amd-min.js | non_blocking |
| https://unpkg.com/we...eb-vitals.iife.js | non_blocking |
| https://ui.adsabs.ha...ipboardBtn.jsx.js | non_blocking |
| https://ui.adsabs.ha...dules/sort-app.js | non_blocking |
| https://ui.adsabs.ha...ool/widget.jsx.js | non_blocking |
| https://ui.adsabs.ha...horAffiliation.js | non_blocking |
| https://cdn.jsdelivr...st/hotkeys.min.js | non_blocking |
| https://ui.adsabs.ha...du/config/shim.js | non_blocking |
| https://cdn.jsdelivr...dist/redux.min.js | non_blocking |
| https://js.sentry-cd...a9b8cd1ac7.min.js | in_body_parser_blocking |
| https://ui.adsabs.ha...middleware/api.js | non_blocking |
| https://ui.adsabs.ha...eeform/actions.js | non_blocking |
| https://ui.adsabs.ha...d-selector-app.js | non_blocking |
| https://ui.adsabs.ha...discovery.vars.js | non_blocking |
| https://ui.adsabs.ha...ort/widget.jsx.js | non_blocking |
| https://www.google.c.../recaptcha/api.js | blocking |
| https://cdn.jsdelivr.../FileSaver.min.js | non_blocking |
| https://ui.adsabs.ha...s/sort-app.jsx.js | non_blocking |
| https://ui.adsabs.ha...nts/Export.jsx.js | non_blocking |
| https://ui.adsabs.ha...tor/widget.jsx.js | non_blocking |
| https://ui.adsabs.ha...onents/Row.jsx.js | non_blocking |
| https://cdn.jsdelivr...prop-types.min.js | non_blocking |
| https://ui.adsabs.ha...author_network.js | non_blocking |
| https://ui.adsabs.ha...thBackboneView.js | non_blocking |
| https://ui.adsabs.ha...Freeform/index.js | non_blocking |
| https://ui.adsabs.ha...ts/Loading.jsx.js | non_blocking |
| https://ui.adsabs.ha...nts/Closer.jsx.js | non_blocking |
| https://cdn.jsdelivr...edux-thunk.min.js | non_blocking |
| https://ui.adsabs.ha...liationRow.jsx.js | non_blocking |
| https://ui.adsabs.ha...nts/Closer.jsx.js | non_blocking |
| https://ui.adsabs.ha...ctor-container.js | non_blocking |
| https://ui.adsabs.ha...matControl.jsx.js | non_blocking |
| https://ui.adsabs.ha...ionButtons.jsx.js | non_blocking |
| https://ui.adsabs.ha.../SaveQueryForm.js | non_blocking |
| https://ui.adsabs.ha...ts/actionNames.js | non_blocking |
| https://ui.adsabs.ha...sort-container.js | non_blocking |
| https://ui.adsabs.ha...iveDateRow.jsx.js | non_blocking |
| https://ui.adsabs.ha...onfigure-store.js | non_blocking |
| https://ui.adsabs.ha...onfigure-store.js | non_blocking |
| https://ui.adsabs.ha...ts/Message.jsx.js | non_blocking |
| https://ui.adsabs.ha...configureStore.js | non_blocking |
| https://ui.adsabs.ha...form/constants.js | non_blocking |
| https://unpkg.com/we...eb-vitals.iife.js | non_blocking |
Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.
Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.
| Type | Quantity | Total duration (ms) |
|---|---|---|
| Total Blocking Time | 448 | |
| Max Potential First Input Delay | 259 | |
| Long Tasks before First Paint | 0 | 0 |
| Long Tasks before First Contentful Paint | 0 | 0 |
| Long Tasks before Largest Contentful Paint | 0 | 0 |
| Long Tasks after Load Event End | 2 | 505 |
| Total Long Tasks | 3 | 598 |
CPU last long task happened at 4.214 s
| name | startTime | duration | containerId | containerName | containerSrc | containerType |
|---|---|---|---|---|---|---|
| self | 3479 | 93 | window | |||
| self | 3946 | 246 | window | |||
| self | 4214 | 259 | window |
Calculated using Tracium.
| Categories (ms) | |
|---|---|
| parseHTML | 42 |
| styleLayout | 264 |
| paintCompositeRender | 13 |
| scriptParseCompile | 2 |
| scriptEvaluation | 1056 |
| garbageCollection | 36 |
| other | 185 |
| Events (ms) | |
|---|---|
| FunctionCall | 788 |
| UpdateLayoutTree | 217 |
| v8.run | 154 |
| RunTask | 125 |
| RunMicrotasks | 54 |
| Layout | 46 |
| ParseHTML | 38 |
| Commit | 20 |
| v8.callFunction | 15 |
| PrePaint | 14 |
| V8.GC_SCAVENGER_SCAVENGE_PARALLEL | 11 |
| Paint | 10 |
| URL | CPU time (ms) |
|---|---|
| https://browser.sentry-cdn.com/7.119.2/bundle.tracing.replay.min.js | 1076 |
| https://ui.adsabs.harvard.edu/libs/require.js | 104 |
| https://www.gstatic.com/recaptcha/releases/lqsTZ5beIbCkK4uGEGv9JmUR/recaptcha__en.js | 72 |
| https://cdn.jsdelivr.net/npm/mathjax@2.7.4/config/TeX-AMS_HTML.js?V=2.7.4 | 64 |
| https://js.sentry-cdn.com/46062cbe0aeb7a3b2bb4c3a9b8cd1ac7.min.js | 48 |
| https://www.googletagmanager.com/gtag/js?id=G-X07MS2584V&l=dataLayer&cx=c | 43 |
| https://www.googletagmanager.com/gtm.js?id=GTM-NT2453N | 33 |
| https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LcpTuUnAAAAAD6YCBdr_2-0b1AH8N6nXkYEG5G5&co=aHR0cHM6Ly91aS5hZHNhYnMuaGFydmFyZC5lZHU6NDQz&hl=en&v=lqsTZ5beIbCkK4uGEGv9JmUR&size=invisible&cb=geoy5h1941kx | 16 |
| https://cdn.jsdelivr.net/npm/jquery@2.2.4/dist/jquery.min.js?v=v1.5.7-hotfix4 | 12 |
| https://ui.adsabs.harvard.edu/config/main.bundle.js?v=v1.5.7-hotfix4 | 11 |
| Tool/domain | Time (ms) |
|---|---|
| Sentry | 1123.5 |
| ui.adsabs.harvard.edu | 114.3 |
| Google CDN | 71.6 |
| JSDelivr CDN | 75.8 |
| Google Tag Manager | 76.7 |
| Other Google APIs/SDKs | 16.3 |
Third party requests categorised by Third party web version 0.24.0.
| Category | Requests |
|---|---|
| utility | 7 |
| survelliance | 17 |
| cdn | 35 |
| tag-manager | 2 |
| analytics | 6 |
| Category | Number of tools |
|---|---|
| utility | 2 |
| survelliance | 5 |
| cdn | 5 |
| tag-manager | 1 |
| analytics | 1 |
| utility (7 requests) |
| Other Google APIs/SDKs |
| Sentry |
|
| survelliance (17 requests) |
| Other Google APIs/SDKs |
| Google CDN |
| Google Tag Manager |
| Google Analytics |
| Google Fonts |
|
| cdn (35 requests) |
| Google CDN |
| JSDelivr CDN |
| Unpkg |
| jQuery CDN |
| Google Fonts |
|
| tag-manager (2 requests) |
| Google Tag Manager |
|
| analytics (6 requests) |
| Google Analytics |
|
Calculated using .*harvard.* (use --firstParty to configure).
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 13.0 KB | 12.6 KB | 4 |
| css | 0 b | 340.7 KB | 340.5 KB | 1 |
| javascript | 0 b | 1.3 MB | 1.3 MB | 56 |
| image | 0 b | 79.3 KB | 78.9 KB | 6 |
| font | 0 b | 75.5 KB | 75.4 KB | 1 |
| json | 0 b | 148.8 KB | 143.6 KB | 8 |
| svg | 0 b | 24.6 KB | 24.2 KB | 4 |
| Total | N/A | 2.0 MB | 2.0 MB | 80 |
| Content | Header Size | Transfer Size | Content Size | Requests |
|---|---|---|---|---|
| html | 0 b | 31.4 KB | 49.8 KB | 1 |
| css | 0 b | 41.7 KB | 77.4 KB | 1 |
| javascript | 0 b | 1.1 MB | 3.3 MB | 36 |
| image | 0 b | 2.3 KB | 2.2 KB | 1 |
| font | 0 b | 30.8 KB | 30.2 KB | 2 |
| plain | 0 b | 781 B | 0 b | 6 |
| json | 0 b | 433 B | 82 B | 2 |
| Total | N/A | 1.3 MB | 3.5 MB | 50 |